How would you explain ‘shellery’ in the context?
Just before the border were pecan orchards, dark blocks of trees with their boughs half bright and half shadowed, lit by the electric lights of the shelleries. People working there in the dead of night, New Year’s morning. The train sighed and stopped at the border, waiting for the customs agents to arrive at their offices. The whitening sky showed a thin stretch of river with dogs skulking along its shores, their up-curved tails reflected on the gray surface. The riverbank is a dumping ground: planks and metal, flaps of tarred paper. At daybreak children began walking from the scrap piles, not a dumping ground after all but a terrible kind of city. Women came out of the shacks too, and last the men, straightening to unfold themselves, placing both hands against their backs, shifting their trousers and pissing in the ditches. Squatting to splash their faces at the river’s edge.
How would you explain ‘shellery’ in the first sentence:.. lit by the electric lights of the shelleries?